Earlier noun in English was simple abort (early 15c.). Originally of both deliberate and unintended miscarriages; in 19c. some effort was made to distinguish abortion "expulsion of the fetus between 6 weeks and 6 months" from miscarriage (the same within 6 weeks of conception) and premature labor (delivery after 6 months but before due time). This broke down as abortion came to be used principally for intentional miscarriages. Foeticide (v.) appears 1823 as a forensic medical term for deliberate premature fatal expulsion of the fetus; also cf. prolicide. Abortion was a taboo word for much of early 20c., disguised in print as criminal operation (U.S.) or illegal operation (U.K.), and replaced by miscarriage in film versions of novels.

Note: Abortion laws are extremely controversial. Those who describe themselves as “pro-choice” believe that the decision to have an abortion should be left to the mother. In contrast, the “pro-life” faction, arguing that abortion is killing, holds that the state should prohibit abortion in most cases. Feminists (seefeminism) and liberals generally support the pro-choice side; Roman Catholics and Protestant fundamentalists generally back the pro-life side. (SeeRoe versus Wade.)